I just stayed at Nathan's place for a two month (+) stay, and I would recommend it to any long-term traveler. The place is more than comfortable, and has a lot of space. Bang for the buck, it's a great deal. Ladphrao is definitely a residential area, so it's not a place you'd want to stay if you want quick access to the tourist hot spots or local night life, but it's also a fraction of the cost of a place in those areas. Here's why I recommend it personally:
1. Location: it's about a 7 minute walk to the MRT station. And you can get almost anywhere in Bankgok via train.
2. Local food vendors in the area are amazing, including a great (cheap) local restaurant on the corner of Ladprao and Soi 23.
3. Internet was mostly stable the whole time I was there and speed was great. This is important for someone like me who works from home, but also it's not always stable and consistent in Bangkok in general. Plus, the router is not shared with the building - it's specifically for this unit, meaning you won't be competing for bandwidth.
4. Minimally equipped kitchen with larger fridge. Street food is awesome in Bangkok, but sometimes I want to wake up and make some breakfast for myself.
5. The air conditioner is brand new. Shortly after I moved in, the whole system was replaced and it works great (and is quick).
6. The building is secure and has an elevator (not that the area is bad - it's not). But the building also has laundry machines and a mid-range gym downstairs, which is really helpful.
7. There is also an awesome filtered water machine downstairs that has great tasting water for only 1THB per liter. Go to 7-11 and grab a big bottle of their water, then keep that 6L bottle and just fill it up downstairs for 5THB (i think the machine actually disperses MORE than a liter per baht).
8. If you DO choose to drive in Bangkok, there is parking available at the building.
9. You cannot hear the street at ALL. It's very quiet there at night.
One recommendation I'd make, if light bothers you, is bring an eye mask if you want to sleep past 7. The unit faces due east, and the rising sun pours into the room. The curtains are not blackout curtains, so a little planning ahead and you can black out your eyes.
Communication was always quick and clear with Nathan, and I'd stay here again in a heartbeat. I enjoyed my time there for sure and would recommend this unit to any other long term traveler.